[feature-request] possible to rename v2ray Email without resetting the usage

[AliM1988]

Welcome

• Yes, I'm using the latest major release. Only such installations are supported.
• Yes, I'm using the supported system. Only such systems are supported.
• Yes, I have read all WIKI document,nothing can help me in my problem.
• Yes, I've searched similar issues on GitHub and didn't find any.
• Yes, I've included all information below (version, config, log, etc).

Description of the problem,screencshot would be good

When I changed the email of clients in the panel, their usages will be reset. It's good to avoid this and allow to rename email.

Version of x-ui

1.1.3

x-ui log or xray log

...

[automa-gen]

Because of the way the database and the UI of this panel are designed it's not very simple to do that. I also think it's one of the downsides of this panel. But I'll keep this issue open to see what I can do.